USPTO Patents Application 10754937

PATENT ABSTRACTS OF JAPAN

(1 DPublication number ; 2001-274845
(43) Date f publication of application : 05.1(12001

SDInt.CL H04L 12/66

606F 13/00
H04L 12/28
H04L 12/46
H04L 12/56
H04L 29/06

(21)Application number : 2000-090697 (71)Applicant : HITACHI LTD

(22>Date of filing : 27.03.2000 (72)lnventor : HAYASHI MASAH1RO

TANAKA KOJI
HIRAYAMA KOJI
SHIBATAJIRO

(54) COMMUNICATING METHOD ACCOMPANYING PROTOCOL CONVERSION AND COMMUNICATION
CONTROLLER

(57)Abstract:

PROBLEM TO BE SOLVED: To enable communication between a
terminal on an IPv6 base and a conventional network on an IPv4
base.

SOLUTION; This communication controller Is provided with a
function for converting an IPv6 packet from a user into an IPv4
format to an ISP/ company intranet realized on the IPv4 base, a
function for processing a message from an IPv6 client in a dynamic
address allocation operation by a DHCP as an IPv6 DHCP server, a
function for operating as an IPv4 client to an IPv4 DHCP server,
and a function for absorbing procedure differences between an IPv6
and an IPv4.

LEGAL STATU8

[Date of request for examination]

[Date of sending the examiner's decision of rejection]

[Kind of final disposal of application other than the

examiner's deoision of rejection or application converted

registration]

[Date of final disposal for application]
[Patent number]
[Date of registration]

[Number of appeal against examiner's decision f
rejection]

[Date of requesting appeal against examiner's decision of
rejection]

[Date of extinction of right]

Copyright (C); 1998,2003 Japan Patent Office

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